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Finding the Fourth Proportional to 75,579.52, 104,300.30 and 42,045.52

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Solution

The fourth proportional to 75,579.52, 104,300.30 and 42,045.52 is: 58,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,579.52 : 104,300.30 = 42,045.52 : x
  2. Step 2: Convert to fraction form
    75,579.52/104,300.30 = 42,045.52/x
  3. Step 3: Cross multiply
    75,579.52x = 104,300.30 × 42,045.52
  4. Step 4: Simplify right side
    75,579.52x = 4,385,360,349.66
  5. Step 5: Solve for x
    x = 4,385,360,349.66/75,579.52
  6. Step 6: Final answer
    x = 58,023.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.